Reese A Clendening, Matthias Zeller, Tong Ren
Reported in this contribution are the synthesis and crystal structures of two new FeIII complexes of 5,5,7,12,12,14-hexamethyl-1,4,8,11-tetraazacyclotetradecane (HMC), namely, dichlorido(5,5,7,12,12,14-hexamethyl-1,4,8,11-tetraazacyclotetradecane)iron(III) chloride, [FeCl2 (C16 H36 N4 )]Cl or cis-[FeCl2 (rac-HMC)]Cl (1), and dichlorido(5,5,7,12,12,14-hexamethyl-1,4,8,11-tetraazacyclotetradecane)iron(III) tetrachloridoferrate, [FeCl2 (C16 H36 N4 )][FeCl4 ] or trans-[FeCl2 (meso-HMC)][FeCl4 ] (2). Single-crystal X-ray diffraction studies revealed that both 1 and 2 adopt a pseudo-octahedral geometry, where the macrocycles adopt folded and planar geometries, respectively...
November 1, 2019: Acta Crystallographica. Section C, Structural Chemistry